{"product_id":"carrier-ph13nb04800gaaaa-transformer-h4oyjb","title":"OEM Carrier Control Transformer 60VA 115\/208\/230V — PH13NB04800GAAAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 60VA 115\/208\/230V for Model PH13NB04800GAAAA\u003c\/h1\u003e\u003cp\u003eThis is the factory-specified OEM control transformer for the \u003cstrong\u003eCarrier PH13NB04800GAAAA\u003c\/strong\u003e heat pump system. The transformer steps down line voltage (115\/208\/230V primary) to the 24V AC signal that powers your thermostat circuit, control board, contactor coil, and all low-voltage safety controls. When it fails, the entire control circuit goes dead — the thermostat displays nothing, the system won't respond to calls for heating or cooling, and no components energize. A failed transformer is often misdiagnosed as a bad control board, making correct identification critical before replacing more expensive components.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60 VA rating | Primary voltage: 115\/208\/230V AC | Secondary voltage: 24V AC | Foot-mounted configuration | OEM part number HT01AW229 | Factory Authorized Parts designation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part. OEM transformers are wound to exact VA and voltage tolerances, protecting sensitive control boards from under\/over-voltage. Generic replacements often use lower-grade core materials, leading to premature thermal failure and potential downstream board damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker and verify zero voltage before touching any wiring. Tools needed: flathead and Phillips screwdrivers, multimeter, wire stripper. Label or photograph all low-voltage wiring connections before removal. Always check for a shorted low-voltage wire that may have caused the original failure — replacing the transformer without clearing the short will blow the new unit immediately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against manufacturing defects. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM replacement for Carrier model \u003cstrong\u003ePH13NB04800GAAAA\u003c\/strong\u003e. Verify your unit's data plate shows a 115\/208\/230V primary and 24V secondary control circuit before ordering. Cross-reference part number HT01AW229 or suffix variant HT01AW229A for confirmed fitment. Have questions about compatibility? Our HVAC parts specialists verify fitment before you order — reach out before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641911431539,"sku":"CARRIE-PH13NB04800GAAAA-TRANSFORMER-HT01AW229","price":280.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641911464307,"sku":"CARRIE-PH13NB04800GAAAA-TRANSFORMER-HT01AW229-GEN","price":246.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01AW229_4b81553a-7814-4eb0-bc10-64014c11caa0.jpg?v=1775026007","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13nb04800gaaaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}